Table A1.

Operational taxonomic units (OTU) of archaea, bacteria, and fungi identified at three depths in peatlands across the James Bay Lowlands, Canada using terminal restriction fragment length polymorphism analysis (T-RFLP) of rDNA.

Site	T-RF length	Proportion within each depth
		0–10 cm	50–60 cm	100–110 cm
ARCHAEA
Kinoje bog	51	–	–	0.73
	178	1.00	0.25	–
	384	–	–	0.02
	483	–	0.75	0.25
Victor bog	51	0.03	–	–
	178	0.03	0.03	–
	193	0.07	0.07	–
	384	0.43	0.45	0.60
	483	0.41	0.42	0.40
	729	0.03	0.03	–
Victor fen	51	–	0.07	–
	67	–	–	0.04
	75	–	0.05	0.11
	83	0.11	0.10	0.42
	249	–	0.04	–
	277	0.27	0.26	0.11
	384	0.28	0.20	0.14
	483	0.34	0.23	0.13
	729	–	0.04	0.05
BACTERIA
Kinoje bog	59	–	–	0.02
	61	0.07	–	–
	66	0.88	0.15	0.04
	82	–	0.08	0.02
	89	–	0.41	0.01
	136	–	–	0.02
	140	0.02	0.13	–
	144	0.03	0.03	0.02
	160	–	0.02	–
	165	–	–	0.12
	260	–	0.10	0.04
	429	–	0.02	–
	447	–	0.03	–
	476	–	–	0.17
	481	–	–	0.26
	484	–	–	0.24
	491	–	–	0.03
	509	–	0.02	–
Victor bog	54	0.06	–	–
	59	0.04	–	–
	61	0.01	0.07	0.04
	66	0.37	0.13	0.08
	89	0.03	0.08	0.10
	110	0.02	–	–
	123	0.02	–	–
	133	–	0.03	–
	136	0.09	0.16	0.15
	140	0.07	–	–
	144	0.08	0.14	0.20
	147	0.01	–	–
	160	0.01	–	–
	165	0.01	0.07	0.08
	260	0.04	0.06	–
	280	–	0.03	–
	284	0.04	–	–
	301	0.02	–	–
	429	0.03	–	–
	432	0.01	–	–
	447	–	0.03	–
	450	0.01	–	–
	476	–	0.15	0.14
	484	–	–	0.22
	496	0.02	–	–
	519	–	0.04	–
Victor fen	66	0.30	0.60	0.30
	79	–	–	0.07
	89	–	0.04	–
	97	–	0.04	–
	144	–	–	0.19
	176	0.04	–	–
	484	0.21	0.08	0.30
	496	–	–	0.13
	513	0.21	0.12	–
	519	0.10	0.06	–
	521	0.15	0.06	–
	193	0.34	–	0.05
FUNGI
Kinoje bog	150	0.32	0.83	0.85
	178	–	0.03	–
	193	0.34	–	0.05
	294	–	0.08	–
	306	0.15	0.06	0.10
	328	0.20	–	–
Victor bog	150	0.64	0.82	0.18
	153	–	–	0.82
	193	0.29	0.04	–
	294	–	0.06	–
	306	0.07	0.03	–
	799	–	0.05	–
Victor fen	150	0.09	0.61	0.24
	178	–	–	0.06
	193	0.72	0.17	0.16
	306	0.19	0.22	0.53

Each OTU is represented by a terminal restriction fragment (T-RF) expressed as a proportion of the total sample (e.g., Kinoje Bog 0–10 cm).